Visionless ventilator



C. M. WILLS vIsIoNLEss VENTILATOR Feb. 12, 1929.

Filed March 31, 1928 lilatented Feb. l2, 1929.

n raras CHARLES IVI. WILLS, OF ATLANTIC CITY, NEW JERSEY, ASSGNOR TO THE AMERICAN TRANSOM CO., INC., OF PHILADELPHIA., ENNSYLVANA, A

PENNSYLVANA.

Application led March 31, wat.

lowed and prevented as desired, the pas` sage of light and visi on should be impossible at all times.

rlhe device of my invention accomplishes these desirable objects in a most etlective and simple manner.

1n the accompanying drawings illustrating one form of the device of my invention similar parts are designated by similar numerals.

Figure 1 is a door with my device installed asa transom.

Figure 2 1s a vertical section of my device in closed position taken through theA line 2-2 of Figure 3.

Figure 3 is a section taken through the line 3-3 of Figure 2.

Figure 4: is an enlarged view of a portion of Figure 3 with the device in open position.

The particular form of my device shown in the accompanying drawings comprises al casing have the channel shaped top 10, bottom 11, ends 12, 12 and sides 13, 13.

A plurality ot inturned wings 14, 14, form a plurality of vertical openings in the sides 13, 13, the openings in the two sides being opposite each other.

Between opposite openings in the sides 13, 13, and capable ot abutment upon the opening wing le, 14 oi one side is a shutter 15, pivotally carried by the pivots 16, 16.

Each shutter 15 is pivotally attached to the longitudinal rod 17 by the link 18,1ixedly attached to the shutter 15 at 19.

One end ot the rod 1T carries a kpin 21 movable within the slot 22 of the bent arm 23 revoluble upon the lined shaft 24. The arm 23 carries the handle 25.

l/Jhen the device is inthe position shown in lligure 4f, air may pass through the'de vice as indicated by the arrows.

l/"Jhen the handle 25 is moved into the posit-ion shown in Figure 3, each shutter abuts CORPORATION 0F vrsronnnss vnnarnnron.

semi no. stessi.

upon a. p air of wings, preventing the passage ci air through the device.

It will be noted that vision through the device is prevented at all times.

My device, therefore, presents a visionless ventilator through which the passage of air may be allowed or prevented by simple and eective means.

l do not limit myself to the particular size, shape, number or arrangement Voit parts as shown and` described, as these are given simply as a means for clearly describing the device of my invention.

"What I claim is zd 1. In a visionless ventilator, in combination, a casing having a top, a bottom, tivo ends and two sides, each side having a plurality of vertical openings, the openings in the two sides being in opposite `alignment with each other; a wing extending inwardly from each side margin of each opening; a pivotal shutter positioned between each pair of opposite openings and capable of abutment'with the wings adjacent to one opening and means exterior of the device whereby rthe shutters may be moved into abutment and non-abutmentwith said adja cent wings.

2. In a visionless ventilator, in combination, a casing having a top, a bottom, two ends and two sides, each side having a plurality of vertical openings, the openings in the two sides being in opposite alignment f with each other; a wing extending inwardly from each side margin of each opening; a pivotal shutter positioned between each pair of opposite openings and capable of abutment with the wings adjacent to one opening, a longitudinally positioned rod and means whereby the movements of the rod will cause the shutters to move into abutment and nonabutinent with said adjacent wings.

ends'andtvvo sides, each side having` alplurality of vertical openings, the openings in the tvvo sides being in opposite alignment With 'each other; aY Wing extending inwardly from each side margin of each opening; a pivotal shutter positioned. between -eacb pair of oppositefopenings and capableot abutment with the Wings `adjacent to one opening, a longitudinally positioned rod, aV

pivotal aringextending outwardly of the Vdey vioeand having a slot in its inner portion, ia pm carried bythe rod andmovable Within said slot, the movements of the-arm causing the shuttersfto move into abutment and non- Vabutment `With said adjacent Wings.

5.V In a visionless ventilator,` in eombination, a casing having a top, a bottom, two ends and two sides, each'side having ay pluralityof vertical openings,'the openings in the two sides being, in ,opposite` alignment with each other, a Wing extending inwardly romeacliside margin of eacli openinggra pivotal shutter positionedb'etween each pair of opposite openingsand capable of'abutment with the Wings adjacentto one opening, a longitudinally positioned rod, a pivotal link connecting each said shutter Witli saidv rod, a pivotal arm extending outwardly of the device and having a slot in its linner portion, a pin carried by the rod and movable within said slot, the movements of the arm causing the shutters to move into abutment and non-abutment with said'adjacent Wings;

Y Signed at Philadelphia, in the county of Philadelphiav and Statev of APennsylvania, this'29th day 'of March, 1928.

CHARLES M. WILLs. i

fioV 

